Speaking in Islamabad while on a three-day visit to Pakistan, Zarif said US helicopters have been transporting Daesh fighters from Haska Meena district in Nangarhar to unknown locations.

In his address to the Institute of Strategic Studies (ISSI) in Islamabad, Zarif said: "We see intelligence, as well as eyewitness accounts, that Daesh fighters, terrorists, were airlifted from battle zones, rescued from battle zones, including recently from the prison of Haska [Meyna]."

“There has been an illusion the security can be purchased, there has been an illusion security can be attained at the expense of security of the others,” said Zarif

But, Washington has rejected the claims and said the US has been dealing Daesh a heavy blow in eastern Nangarhar in ongoing airstrikes.

“Iran and Russia continues to wage war against their political opponents and there is another reason we noticed Syrian and Russians never intended to implement the ceasefire. Because they plan for it,” said US Ambassador to the UN Nikki Haley recently.

This is not the first time such allegations have been made. A few months ago, Iran and Russian officials both levelled similar allegations against Washington about them transporting Daesh fighters to Afghanistan. tags: Afghanistan